1. white hiber heads mean that they are those cleaners and just like red hiber heads they can uhh... ya know
2. be careful In vents as the door opens another red hiber head (a small one) that can uhh...
3. doors open by themselves and there are checkpoints.

enjoyed this?
why not play part 1 too?
https://hiberworld.com/p/3lspjqU2v